The price of Bitcoin and other Bitcoin stocks slid on Tuesday, amid reports of a widening crackdown in China and reservations from Twitter ( TWTR ) about investing in the volatile cryptocurrency. X The drop in Bitcoin's price also arrives a day after President Biden signed a large infrastructure bill containing a provision intended to strengthen tax reporting requirements on cryptocurrency transactions. However, just days after VanEck's spot Bitcoin ETF was rejected by the SEC , the investment firm said Tuesday its VanEck Bitcoin Strategy ETF, another Bitcoin futures ETF, had begun trading on CBOE under the ticker XBTF. The…